Temperature-sensing lifting range hood

Abstract

The utility model relates to the technical field of kitchen equipment, and particularly discloses a temperature sensing lifting range hood which comprises a hood body and a lifting device. Wherein the lifting device comprises a lifting seat, a bracket and a driving mechanism, and the machine body comprises an air guide part, an air outlet part and a first temperature sensor. When the cooker works, the first temperature sensor senses temperature rise, the driving mechanism is started immediately, and the height of the cooker body is adjusted through the lifting support. According to the design, the range hood can be automatically adjusted to the optimal working height according to the actual cooking condition and the oil smoke amount, oil smoke is timely discharged, diffusion is avoided, and the kitchen environment is effectively improved. Compared with a range hood with the height needing to be manually adjusted in the market, the range hood achieves automatic adjustment and is more convenient and efficient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a temperature-sensing lifting range hood. Background Art

[0002] The current top-exhaust side-suction range hood is fixedly installed on the wall. Once installed, the distance between the range hood and the stove cannot be changed at will. If it is installed too high, the exhaust speed is slow, and the oil smoke generated during cooking cannot be fully and promptly discharged outdoors, which brings serious pollution to the kitchen and affects the health of the staff; if it is installed too low, it is not conducive to smoke collection, and some oil smoke will spread in the kitchen. Secondly, it will cause obstacles to tall staff. Therefore, the side-suction range hood cannot be freely adjusted in real time according to the oil smoke situation during cooking operations and the needs of humanely adapting to staff of different heights.

[0003] In view of this, a side-suction range hood equipped with a lifting structure has appeared on the market. Its appearance has better solved the problem of real-time adjustment of the height of the side-suction range hood, and meets the requirement that the side-suction range hood can absorb oil smoke at any position within its lifting range. However, after the applicant's market research, it was found that various types of side-suction range hoods with lifting structures have the following shortcomings in actual use: the current lifting control of kitchen range hoods requires manual participation and cannot automatically adjust the lifting distance. Summary of the Invention

[0004] The purpose of the invention of the utility model is to solve the problem that the existing range hood cannot automatically adjust the lifting distance, and to provide a temperature-sensing lifting range hood.

[0005] In order to achieve the above invention objectives, the present invention adopts the following technical solutions:

[0006] A temperature-sensing lifting range hood comprises a body and a lifting device, wherein the lifting device comprises a lifting seat, a lifting bracket and a lifting drive mechanism, wherein the lifting bracket and the lifting drive mechanism are arranged on the lifting seat, and the body comprises an air guide portion, an air outlet portion and a first temperature sensor, wherein the air outlet portion is connected to the upper end of the air guide portion, and the first temperature sensor is arranged at the lower end of the air guide portion, and the rear side of the air outlet portion is connected to the lifting bracket so that the body can be movably arranged on the lifting seat via the lifting bracket, and the lifting drive mechanism drives the lifting bracket to drive the body to move longitudinally relative to the lifting seat.

[0007] The range hood of the present invention is equipped with a lifting device and a first temperature sensor. When the stove starts working, the first temperature sensor will sense the temperature increase of the stove and the surrounding environment. According to the signal of the first temperature sensor, the lifting drive mechanism will automatically start, driving the lifting bracket to drive the body to move longitudinally relative to the lifting seat, thereby adjusting the height of the range hood. In this way, the range hood can automatically adjust to the optimal working height according to the actual cooking conditions and the amount of oil smoke generated, which not only ensures the timely discharge of oil smoke, but also avoids the spread of oil smoke in the kitchen, thereby effectively improving the kitchen environment. Compared with the existing technology, the range hood of the present invention is compared with the range hoods on the market that require manual participation to adjust the height. This technical solution realizes automatic adjustment, which is more convenient and efficient.

[0008] Furthermore, the lifting drive mechanism is a drive motor, which is assembled on the top of the lifting seat through the motor bracket. The lifting bracket includes a ball screw pair and a first slider. The ball screw pair is longitudinally arranged on the lifting seat, and one end of its screw rod is connected to the drive output end of the drive motor. The rear side of the first slider is fixedly connected to the nut of the ball screw pair, and its front side is connected to the air outlet.

[0009] Furthermore, the motor bracket includes a first positioning part and a second positioning part, the first positioning part is arranged horizontally, the second positioning part is arranged longitudinally and two are arranged horizontally and symmetrically, the lower end of the second positioning part is connected to the lifting seat, the upper end of the second positioning part is connected to the first positioning part, the upper end of the drive motor is connected to the lower end of the first positioning part, and is clamped between the two second positioning parts. In this solution, the first positioning part and the two second positioning parts form a vertically inverted "U" shape, and the drive motor is installed in the U shape, so that the structure is more stable. This solution optimizes the structure of the motor bracket to make the drive motor more stable during the operation of the lifting range hood, reduce the problem of unstable lifting or noise caused by motor vibration or external force, and adopt a reasonable mechanical distribution design to reduce the force burden on the motor bracket and other components of the lifting device, thereby extending the overall service life.

[0010] Furthermore, the second positioning portion includes a first positioning block and a second positioning block that are perpendicular to each other. The first positioning block abuts the side of the drive motor, and the second positioning block extends forward from the first positioning block to shield the side of the drive motor. In this solution, the mutually perpendicular first and second positioning blocks form a stable right-angle support structure. This design effectively disperses the vibration force and load generated by the drive motor during operation, reducing the risk of deformation and damage to the motor bracket. At the same time, the second positioning block isolates and protects the drive motor.

[0011] Furthermore, a U-shaped space is formed on the lifting seat, and the lifting bracket is located in the U-shaped space. In this solution, the U-shaped structure has the function of isolating and protecting the lifting bracket.

[0012] Furthermore, the lifting base is provided with a guide rail structure, comprising a linear guide rail extending along the height of the lifting base and a second slider movably mounted on the guide rail, the second slider being fixedly connected to the air outlet. In this embodiment, the linear guide rail provides precise guidance for the lifting motion, ensuring the stability and linearity of the machine body during the lifting process and preventing deviation or shaking.

[0013] Furthermore, two groups of lifting devices are arranged horizontally.

[0014] Furthermore, a control module is provided in the body, and the control module includes a first temperature signal receiving port and a second temperature signal receiving port. The first temperature signal receiving port is used to receive the temperature sensor signal of the body, and the second temperature signal receiving port is used to receive the temperature sensor signal of the stove.

[0015] Furthermore, the control module is preset with at least one temperature threshold, and a distance drop value h1 is set corresponding to the temperature threshold.

[0016] Furthermore, the control module is preset with a first temperature threshold t1, a second temperature threshold t2 and a second temperature threshold t3, where t1<t2<t3. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the structure diagram of the range hood Figure 1 ;

[0018] Figure 2 This is the structure diagram of the range hood Figure 2 ;

[0019] Figure 3 This is the structure diagram of the range hood Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the structure of the lifting device Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the structure of the lifting device Figure 2 ;

[0022] Figure 6 It is a structural diagram of the motor bracket.

[0023] Description of labels:

[0024] Body 1, air guide part 11, air outlet part 12, first temperature sensor 8, lifting device 2, lifting seat 3, lifting bracket 4, ball screw pair 41, first slider 42, lifting drive mechanism 5, guide rail structure 6, linear guide 61, second slider 62, motor bracket 7, first positioning part 71, second positioning part 72, first positioning block 721, second positioning block 722. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described below with reference to the accompanying drawings:

[0026] In the description of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “horizontal”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] See also Figure 1-6 As shown, the utility model discloses a temperature-sensing lifting range hood, comprising a body 1 and a lifting device 2. The lifting device 2 comprises a lifting seat 3, a lifting bracket 4 and a lifting drive mechanism 5, and the lifting bracket 4 and the lifting drive mechanism 5 are both arranged on the lifting seat 3. The body 1 comprises an air guide portion 11, an air outlet portion 12 and a first temperature sensor 8, wherein the air outlet portion 12 is connected to the upper end of the air guide portion 11, and the first temperature sensor 8 is arranged at the lower end of the air guide portion 11. The rear side of the air outlet portion 12 is connected to the lifting bracket 4, so that the body 1 can be movably arranged on the lifting seat 3 through the lifting bracket 4. The lifting drive mechanism 5 is responsible for driving the lifting bracket 4, thereby driving the body 1 to move longitudinally relative to the lifting seat 3.

[0028] The lift drive mechanism 5 utilizes a drive motor, which is mounted on the top of the lift base 3 via a motor bracket 7. The lift base 4 includes a ball screw 41 and a first slider 42. The ball screw 41 is longitudinally mounted on the lift base 3, with one end of its lead screw connected to the output terminal of the drive motor. The rear side of the first slider 42 is fixedly connected to the nut of the ball screw 41, while the front side is connected to the air outlet 12.

[0029] The above-mentioned motor bracket 7 is composed of a first positioning part 71 and a second positioning part 72. The first positioning part 71 is arranged horizontally, while the second positioning part 72 is arranged longitudinally and there are two horizontally symmetrically arranged. The lower end of the second positioning part 72 is connected to the lifting seat 3, and the upper end is connected to the first positioning part 71. The upper end of the drive motor is connected to the lower end of the first positioning part 71 and is clamped between the two second positioning parts 72. This design enables the first positioning part 71 and the two second positioning parts 72 to form a vertically inverted "U"-shaped structure, in which the drive motor is installed, and the structure is more stable. By optimizing the structure of the motor bracket 7, this solution reduces the problems of unstable lifting or noise caused by motor vibration and external force, and adopts a reasonable mechanical distribution design to reduce the stress burden on the motor bracket 7 and other components of the lifting device 2, thereby extending the overall service life.

[0030] The first positioning portion 71 and the second positioning portion 72 are integrally formed.

[0031] The second positioning portion 72 comprises a first positioning block 721 and a second positioning block 722, which are perpendicular to each other. The first positioning block 721 abuts the side of the drive motor, while the second positioning block 722 extends forward from the first positioning block 721, shielding the side of the drive motor. This design forms a stable right-angle support structure, effectively dissipating the vibration and load generated by the drive motor during operation, and reducing the risk of deformation and damage to the motor bracket 7. The second positioning block 722 also isolates and protects the drive motor.

[0032] A U-shaped space is formed on the lifting seat 3, and the lifting bracket 4 is located in the U-shaped space. This U-shaped structure has an isolation and protection effect on the lifting bracket 4.

[0033] The lift base 3 is provided with a guide rail structure 6 comprising a linear guide rail 61 extending along the height of the lift base 3 and a second slider 62 movably mounted on the guide rail. The second slider 62 is fixedly connected to the air outlet 12. The linear guide rail 61 provides precise guidance for the lifting motion, ensuring the stability and linearity of the machine body 1 during the lifting process and preventing deviation or shaking.

[0034] In addition, two groups of lifting devices 2 are arranged transversely to further enhance stability and load-bearing capacity.

[0035] A control module (not shown) is provided in the above-mentioned body 1, and the control module includes a first temperature signal receiving port and a second temperature signal receiving port. The first temperature signal receiving port is used to receive the temperature sensor signal of the body 1, and the second temperature signal receiving port is used to receive the temperature sensor signal of the stove.

[0036] The control module is preset with at least one temperature threshold, and a distance drop value h1 is set corresponding to the temperature threshold.

[0037] The device further comprises a second temperature sensor (not shown in the figure), which is arranged on the stove.

[0038] The control module is pre-set with an initial temperature t0, a first temperature threshold t1, a second temperature threshold t2, and a third temperature threshold t3, where t1 < t2 < t3. For example, t0 is less than 50°C, t1 is between 50°C and 80°C, t2 is between 80°C and 150°C, t3 is between 150°C and 350°C, and h1 is 50mm. Assume that when the stove surface temperature is between 50°C and 80°C, the range hood's center position is 700mm. When the temperature is between 80°C and 150°C, it is determined to be high-temperature stir-frying, and the range hood's rear drive motor automatically lowers to 650mm. When the temperature is below 50°C, the range hood's rear synchronous motor raises to 750mm. If it is determined to be dry cooking, the rear synchronous motor lowers to 600mm to absorb the smoke, and appropriate safety measures are taken (such as disconnecting the stove power supply). When the monitored temperature returns to the initial temperature t0, the drive motor activates the range hood to return to its initial height. The temperature probe on the range hood and the temperature probe on the surface of the cooker simultaneously determine whether the temperature is within the defined range, and determine whether the range hood needs to be raised or lowered based on the collected data.

[0039] The range hood of this utility model is equipped with a lifting mechanism 2 and a first temperature sensor 8. When the cooker begins operating, the first temperature sensor 8 senses the rising temperature of the cooker and its surroundings. Based on the signal from the first temperature sensor 8, the lifting drive mechanism 5 automatically activates, driving the lifting bracket 4 to adjust the height of the range hood body 1. This allows the range hood to automatically adjust to the optimal operating height based on the actual cooking conditions and the amount of oil fume generated. This ensures the timely exhaust of oil fumes while effectively preventing them from spreading throughout the kitchen, thereby improving the kitchen environment. Compared to existing technologies, the range hood of this utility model implements automated height adjustment, making it more convenient and efficient.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. Based on the disclosure and teachings of the above description, those skilled in the art in the field to which the utility model belongs can also make changes and modifications to the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the utility model.

Claims

1. A temperature-sensing lifting range hood, characterized by: The invention comprises a machine body (1) and a lifting device (2), wherein the lifting device (2) comprises a lifting seat (3), a lifting bracket (4) and a lifting drive mechanism (5), wherein the lifting bracket (4) and the lifting drive mechanism (5) are arranged on the lifting seat (3), the machine body (1) comprises an air guide portion (11), an air outlet portion (12) and a first temperature sensor (8), wherein the air outlet portion (12) is connected to the upper end of the air guide portion (11), and the first temperature sensor (8) is arranged at the lower end of the air guide portion (11), and the rear side of the air outlet portion (12) is connected to the lifting bracket (4) so that the machine body (1) is movably arranged on the lifting seat (3) through the lifting bracket (4), and the lifting drive mechanism (5) drives the lifting bracket (4) to drive the machine body (1) to move longitudinally relative to the lifting seat (3).

2. The range hood according to claim 1, characterized in that: The lifting drive mechanism (5) is a driving motor, which is assembled on the top of the lifting seat (3) through a motor bracket (7). The lifting bracket (4) includes a ball screw pair (41) and a first slider (42). The ball screw pair (41) is longitudinally arranged on the lifting seat (3), and one end of its screw rod is connected to the driving output end of the driving motor. The rear side of the first slider (42) is fixedly connected to the nut of the ball screw pair (41), and the front side is connected to the air outlet (12).

3. The range hood according to claim 2, characterized in that: The motor bracket (7) includes a first positioning portion (71) and a second positioning portion (72), wherein the first positioning portion (71) is arranged horizontally, and the second positioning portion (72) is arranged longitudinally and two are arranged horizontally and symmetrically, the lower end of the second positioning portion (72) is connected to the lifting seat (3), the upper end of the second positioning portion (72) is connected to the first positioning portion (71), and the upper end of the driving motor is connected to the lower end of the first positioning portion (71) and is sandwiched between the two second positioning portions (72).

4. The range hood according to claim 3, characterized in that: The second positioning portion (72) comprises a first positioning block (721) and a second positioning block (722) which are perpendicular to each other, wherein the first positioning block (721) abuts against the side of the drive motor, and the second positioning block (722) extends forward from the first positioning block (721) to shield the side of the drive motor.

5. The range hood according to claim 4, characterized in that: A U-shaped space is formed on the lifting seat (3), and the lifting bracket (4) is located in the U-shaped space.

6. The range hood according to claim 5, characterized in that: The lifting seat is provided with a guide rail structure (6), which comprises a linear guide rail (61) arranged along the height direction of the lifting seat (3) and a second slider (62) movably arranged on the linear guide rail (61), and the second slider (62) is fixedly connected to the air outlet portion (12).

7. The range hood according to claim 1, characterized in that: The lifting devices (2) are arranged in two groups in the transverse direction.

8. The range hood according to claim 1, characterized in that: A control module is provided in the body (1), and the control module comprises a first temperature signal receiving port and a second temperature signal receiving port, wherein the first temperature signal receiving port is used to receive a temperature sensor signal of the body (1), and the second temperature signal receiving port is used to receive a temperature sensor signal of the stove.

9. The range hood according to claim 8, characterized in that: The control module is preset with at least one temperature threshold, and a distance drop value h1 is set corresponding to the temperature threshold.

10. The range hood according to claim 9, characterized in that: The control module is preset with a first temperature threshold t1, a second temperature threshold t2 and a second temperature threshold t3, where t1<t2<t3.

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